baber/WOPTO huggingface dataset:
Patent CA-1068075-A (CA)
Inventor: REED ROBERT D
IPC: B01D53/34
Filed: 1975-03-03
Granted: 1979-12-18
Abstract: ABSTRACT OF THE DISCLOSURE       A process for converting gases containing oxides of nitrogen into gases which may be safely vented to the atmosphere wherein the gases containing the oxides of nitrogen (NOx) are mixed with excess combustible products obtained by burning a hydrocarbon fuel with less than its stoichiometric requirements of oxygen, the mixture thus obtained is cooled to avoid temperatures substantially above 2,000°F. but not below about 1,200°F., the combustible material remaining after substantially all of the oxides of nitrogen have been reduced to nitrogen are oxidized, so that the resulting gas, substantially free of NOx and carbon monoxide (CO) may be vented to the surrounding atmosphere without contamination of the environment and without smoke or other particulate matter.
Patent CA-1041486-A (CA)
Inventor: ROUECHE ARMAND
IPC: C08K5/00
Filed: 1975-03-10
Granted: 1978-10-31
Abstract: ABSTRACT OF THE DISCLOSURE            Azo colorants of the formula   wherein A denotes the radical of a heterocyclic diazo compo-nent, R1 denotes a hydroxyl, alkyl, phenyl or alkoxycarbonyl group, R2 denotes a H atom or an alkyl, phenyl, acyl, nitrile, alkoxycarbonyl or carbamoyl group, and X and Y denote sub-stituents which do not confer solubility in water, which  are useful for coloring highmolecular organic material.
Patent CA-1039971-A (CA)
Inventor: PREUSS ARNFRIED
IPC: G01K7/24
Filed: 1975-03-11
Granted: 1978-10-10
Abstract: ABSTRACT OF THE DISCLOSURE  An a.c.-fed temperature measuring bridge in the form of a balanced Wheatstone bridge containing a temperature sensor R(x) which, depending upon. the measured tempera-ture x°C,generates an output voltage which is balanced by a variable voltage y provided by ohmic ratio arms in such a way that if the sensor R(x)  has a non-linear characteristic, there will still be a linear relation-ship such that x = const.?y, the inventive feature being that the fixed ratio arms of the balanced Wheatstone bridge are formed by an inductive potential divider and that for correcting the non-linearity of the sensor the voltage across the variable ohmic ratio arms is a pre-determined ratio     of the voltage feeding the bridge.
Patent CA-1049343-A (CA)
Inventor: KIRCHNER HENRY P
IPC: C04B35/565
Filed: 1975-04-07
Granted: 1979-02-27
Abstract: ABSTRACT           A method of improving the impact resistance of bodies of polycrystalline ceramic such as alumina, silicon nitride and silicon carbide, and bodies produced by the method.  The body is provided with a layer of low elastic modulus polycrystalline ceramic material which has micro-cracks therein, formed by such factors as thermalexpansion coefficient anisotropy, differences in thermalexpansion coefficients between phases of the material, and by changes in volume during phase transformations in the material.  The layer can be applied by preforming the layer and then applying, or by hot pressing the material of the layer onto the body.
Patent CA-1037889-A (CA)
Inventor: DEBOER CLARENCE
IPC: A61K31/706
Filed: 1975-04-24
Granted: 1978-09-05
Abstract: ABSTRACT OF THE DISCLOSURE           New antibiotic U-44,590 and derivatives thereof, produced by the controlled fermentation of the new micro-organism Streptomyces plantensis var. clarensis var nova, NRRL 8035.  This antibiotic and its derivatives are active against Gram-negative bacteria.  Accordingly, they can be used in various environments to eradicate or control such bacteria.      The following is considered to be the structure of U-44,590;                        and its trivial name is 5,6-dihydro-5-azathymidine.
Patent CA-1067762-A (CA)
Inventor: WILLIAMS THOMAS C A
IPC: C08L77/00
Filed: 1975-05-06
Granted: 1979-12-11
Abstract: ABSTRACT           An organosilan?  modified metal silicate treated inorganic mineral composition and polymer composite compositions of same.   1.
Patent CA-1095675-A (CA)
Inventor: BROMLEY JAMES E
IPC: D01F6/60
Filed: 1975-06-24
Granted: 1981-02-17
Abstract: ABSTRACT OF THE DISCLOSURE      Nylon 66 yarn having particular stress-strain properties, typically also having a soft, luxuriant hand in fabric form.  As compared to conventional nylon 66 with comparable boiling water shrinkage, the novel yarn exhibits a higher modulus at break, a lower modulus at 10% elongation, a positive stress index, and excellent denier uniformity. The process involves subjecting the yarn, within 0.016 to 0.11 seconds after solidification of the filaments, to a tension of 0.2 and 1.5 grams per final denier and heating the yarn to a temperature between 50 and 250°C. long enough to reduce yarn retraction below 1%.
Patent CA-1069811-A (CA)
Inventor: SCHUMACHER FREDERICK G
IPC: B32B37/00
Filed: 1975-06-26
Granted: 1980-01-15
Abstract: ABSTRACT OF THE DISCLOSURE Improved process for laminating two sheets, the surface of the primary sheet being sensitive to distortion by pressure or friction, by applying an adhesive to the back side of the primary sheet or to the mating side of the secondary sheet, or to both, contacting the mating side of the secondary sheet with the back side of the primary sheet and firmly pressing together the two sheets while avoiding the application of any pressure to the pressure-sensitive face side of the primary sheet until at least 50 percent of the terminal bond strength is developed, by maintaining the primary and secondary sheets taut and applying pressure from the back side of the secondary sheet.  Laminates prepared according to the above process, such as tufted carpets comprising a primary backing material stitched with closely spaced tufts of yarn and a secondary backing material adhered thereto with an adhesive, have improved pile lay characteristics.
Patent CA-1057196-A (CA)
Inventor: FRANZ JOACHIM
IPC: A61K47/44
Filed: 1975-07-03
Granted: 1979-06-26
Abstract: IMPROVEMENTS IN OR RELATING TO ORGANIC COMPOUNDS            Abstract of the Invention This invention relates to a pharmaceutical composition comprising aggregates of diameter of at most 20,000 .ANG., comprising component a) an ergot alkaloid, and component b) a pharmaceutically acceptable ethoxylated cholesterin emulsifier having an HLB value of from 10 to 30 and present in an amount greater than 10 times by weight of the ergot alkaloid.         The composition has enhanced resorption properties.
Patent CA-1041834-A (CA)
Inventor: TSUTSUI TOSHIAKI
IPC: F04D29/22
Filed: 1975-08-26
Granted: 1978-11-07
Abstract: ABRIDGEMENT           An axial flow inducer for hydraulic devices is disclosed. the inducer is coaxially arranged in front of a fluid suction inlet side of a main impeller of an hydraulic device, for example, a pump and constituted by at least two axial flow blade parts which are constructed and arranged so as to prevent an occurrence of noise over all flow amount region of the impeller.
Patent CA-1064597-A (CA)
Inventor: DUQUESNE JEAN F
IPC: H04Q11/04
Filed: 1975-08-29
Granted: 1979-10-16
Abstract: A B S T R A C T   O F   T H E   D I S C L O S U R E           A switching unit for a multiplex pulse code modulation trans-mission system formed of incoming and outgoing multiplex digital circuits divided into a number of frame locking, information and signalling time slots. The information time slots are grouped in frames and contain information octets and the signalling time slots are grouped in multiframes and contain two signalling demi-octets. A transmission channel is defined by the recurrent information time slots having a given serial number in the frame and the octets contained therein and the recurrent signalling time slots having a given serial number in the multiframe and the first or the second demi-octets contained therein. The switching unit of the invention switches both the information octets and the signalling demi-octets of a selected transmission channel. Switching comprises writing and reading the information octets in and out of information buffer stores and writing and reading the signalling demi-octets in and out of signalling buffer stores. Since there are two demi-octets and only one octet per frame, the reading rate would have to be two times higher for the signalling than for the information. The read-ing rate is equalized for both information and signalling switching by reading the signalling demi-octets during both the frame lock-ing time slots and the signalling h time slots.
Patent CA-1059317-A (CA)
Inventor: PLONSKER LARRY
IPC: C10L1/22
Filed: 1975-10-15
Granted: 1979-07-31
Abstract: Abstract of the Disclosure Gasoline compositions and additive mixtures of esters of nitrilotriacetic acid, in amount sufficient to alleviate the plugging of certain catalysts being used in an engine exhaust system to lower the amount of undesirable constituents in exhaust gas from an engine being operated on gasoline containing a cyclopentadienyl manganese antiknock.
Patent CA-1045962-A (CA)
Inventor: ICHINOSE NOBORU
IPC: H01C17/065
Filed: 1975-10-15
Granted: 1979-01-09
Abstract: Abstract of the Disclosure A gas-sensing material for detecting the presence particularly of hydrocarbon gases which is characterized by being formed of a sinter containing 20 to 99.85 mol % of ZnO, 01. to 50 mol % of MgO and 0.05 to 30 mol %  of Me2O3 (Me denotes at least one element select-ted from the group consisting of gallium (Ga), boron (B), indium (In), iron (Fe), aluminium (Al) and chromium (Cr)), or another sinter prepared by blending 0.01 to 10% by weight of platinum (Pt) to the above-mentioned composition.
Patent CA-1048580-A (CA)
Title: Portable hand-manipulatable steamer for loosening the bond between wallpaper and a substrate
Inventor: OSROW LEONARD
IPC: B44C7/02
Filed: 1975-11-18
Granted: 1979-02-13
Abstract: ABSTRACT OF THE DISCLOSURE      A device in which steam is generated by electrolytic heating and is directed to a plenum chamber having an open face the walls of which are designed to engage the exposed surface of previously applied wallpaper so as to cause the steam to penetrate the wallpaper and loosen the adhesive bond between the wallpaper and the underlying substrate.
Patent CA-1039461-A (CA)
Inventor: THECKSTON DANA L
IPC: B60S1/38
Filed: 1975-11-27
Granted: 1978-10-03
Abstract: ABSTRACT OF THE DISCLOSURE A heated windshield wiper assembly having a heat resistant flexible blade element provided with an electrical heating arrangement disposed in a cavity of the blade element.  The heating arrangement includes a resistance element encased in the blade element for heating water fed into the cavity and out holes in the blade element onto an associate windshield.  The resistance element is advantageously a wire arranged in a folded non-conductive tubular member encased in the blade element.  A non-conductive coil encircling the tubular member for holding same in a folded condition so that the tubular member will uniformly distribute heat transferred to the tubular member from the resistance wire.
Patent CA-1062370-A (CA)
Inventor: GEORGE PETER K
IPC: G11C19/08
Filed: 1975-11-28
Granted: 1979-09-11
Abstract: BUBBLE DOMAIN SYSTEM            Abstract This invention relates to chip organization for use in BORAM systems in place of major-minor loop chips.  In particular, a plurality of storage loops are arranged in suitable fashion.  A subsidiary path is provided around a portion of each storage loop.  This subsidiary path is arranged to be of substantially the same length as the loop portion which it parallels.  Consequently, bubble domains may traverse either of these paths, selectively, within the same time duration.  A switching mechanism is provided to determine which of the paths the information in the storage loop follows.  A propagation path is arranged between the subsidiary path and a detector so that information can be transferred from the storage loop to a detector via a portion of the subsidiary path and the transfer path.  A generator and a replicator/ annihilator are arranged adjacent to the subsidiary path so that bubble domains may be selectively supplied to or deleted from the information stored in the storage loop.  Suitable control elements are arranged to control the generation of bubble domains, the replication or annihilation of bubble domains, the detection of bubble domains and the selective transfer of bubble domains from the storage loop to the detector path.  The system provides increased throughput of information and reduced access or read time for the same information as compared to existing major-minor or decoder accessed chip organizations which it is designed to replace.
Patent CA-1075630-A (CA)
Inventor: EBERLY PAUL E JR
IPC: C10G21/16
Filed: 1975-12-04
Granted: 1980-04-15
Abstract: ABSTRACT OF THE DISCLOSURE      Petroleum fractions may be separated into aromatic-rich and paraffinic-rich hydrocarbon streams by the use of methanol/water mixtures having more than 20% water.  The paraffinic-rich stream is recovered as raffinate.  The aromatic-rich stream passes out of the extraction zone and is recovered by lowering the temperature to induce a phase separation.
Patent CA-1050700-A (CA)
Inventor: AUSTIN ARTHUR L
IPC: C08G18/28
Filed: 1975-12-29
Granted: 1979-03-13
Abstract: Abstract of the Disclosure Polyether polyols may be synergistically stabil-ized against oxidation by incorporating therewith 4,4'-bis (alphadimethylbenzyl) diphenyl amine and a 2,6-di-t-butyl 4-(lower alkyl) phenol such as 2,6-di-t-butyl-4-methyl phenol or 2,6-di-t-butyl-4-butyl phenol.  The stabilized polyols inhibit color formation when employed in the prep-aration of polyurethane foams.
Patent CA-1066567-A (CA)
Inventor: SUNG PEI
IPC: A61K6/847
Filed: 1976-01-30
Granted: 1979-11-20
Abstract: ABSTRACT OF THE DISCLOSURE                The invention relates to dental solder particularly suitable for joining parts of structural frameworks made of non-precious metal alloys, the framework being used in the preparation of bridges, crowns and the like.  The solder compositions consist essentially of about 69 to 75% nickel, about 14 to 19.9% chromium, about 4 to 5.5% silicon and about 2.5 to 6% boron.  The composition may be modi-fied to include up to about 6% molybdenum to increase corrosion resistance.  The solder has a fusion temperature in the range of from about 1800°F to about 1950°F and a diametrial tensile strength of at least 35,000 p.s.i. and a solder joint tensile strength of at least 70,000 p.s.i.
Patent CA-1049360-A (CA)
Inventor: LAHAYE PAUL G
IPC: F23L15/04
Filed: 1976-02-05
Granted: 1979-02-27
Abstract: Abstract of the Disclosure An energy conserving process furnace has a recuperator to utilize heat derived from exhaust gases in order to reduce fossil fuel consumption of the furnace.  Elongated,  enhanced surface ceramic heat exchanger tubas are used in the recuperator to recover heat energy from the exhaust gas.  A preferred sealing arrangement is used between the metal and ceramic tubes to con-tain the combustion air.  Heat is added by the recuperator to combustion air used in a fluid fuel burner.  The ceramic tubes are provided with vibration protective mechanisms to prolong use-ful life under severe mechanical vibration encountered in some applications.     In a method of operating a slot furnace  exhaust gas is exhausted from a side of the furnace through the slot or a passageway having an elongated horizontal cross section.  In the preferred arrangement a second passage or air curtain passageway is positioned adjacent the first passageway to permit proper gas flow through a recuperator.  The recuperator is designed to recoup heat from exhaust gas in the first passage-way and provide such heat as energy to heat combustion air used in the furnace.  The second passageway by-passes the recuperator to avoid passing colder room air through the recuperator and to protect the operator from high temperature exhaust gas.       The heat exchange ceramic tubes are designed to operate at temperatures of 1300°F and above without damage and with good sealing properties between elements.      The system preferably includes a recirculating burner means which acts to reduce the combustion air requirements and to provide a combustion zone low in oxygen so as to prevent scale formation and oxidation of metals being treated in the furnace area.  The recirculating burner has a flame front outside of the burner in the combustion chamber.
Patent CA-1051840-A (CA)
Title: Method and apparatus for the twin-wire air laying of fibrous pads
Inventor: LEE CHARLES A
IPC: D04H13/00
Filed: 1976-04-12
Granted: 1979-04-03
Abstract: ABSTRACT OF THE DISCLOSURE            Fibers are air laid on a twin-wire machine to form a composite pad.  A pair of endless foraminous carriers are passed through a forming chamber where fibers suspended in air are directed between the carriers.  A layer of fibers is built up on each of the carriers by applying pressure differen-tial across the carriers in the chamber to force air from the suspension through the carriers.  In one form of the invention the air is directed through the respective carriers in different patterns to form respective fiber layers of different cross section.  The carriers converge within the chamber in their direction of motion to join the facing surfaces of the respec-tive layers to form a composite pad of non-uniform cross section.         According to one aspect of the invention, excess fibers are removed from the facing surfaces just prior to their being joined.
Patent CA-1040683-A (CA)
Inventor: TESTA JOSEPH E
IPC: B05B15/06
Filed: 1976-06-11
Granted: 1978-10-17
Abstract: A SPRINKLER ADAPTED FOR ATTACHMENT TO THE GROUND JOSEPH E. TESTA ABSTRACT OF THE DISCLOSURE A sprinkler comprises a nozzle attached at one end of an elongated member, an earth-penetrating element attached at the other end of the member, and a foot-step. The nozzle is attached to a passage in the elongated member through a fluid communication means and receives fluid transmitted to it through the passage from a fluid source. The means for attaching the element to the member is comprised of two element portions receiving a section at one end of the member therebetween and interengaging parts, such as a projection - recess combination, on each of the element portions and the member section. Adjacent to each member interengaging part is a groove running between, and bounded by the element portions. The foot-step is secured by securing it to those parts of the element portions bounding the groove, with the securing means being received within the groove.
Patent CA-1074854-A (CA)
Inventor: GARNIER MARCEL
IPC: B22D11/01
Filed: 1976-06-30
Granted: 1980-04-01
Abstract: IN THE CANADIAN PATENT AND TRADEMARK OFFICE           PATENT APPLICATION   entitled "ELECTROMAGNETIC APPARATUS FOR CONSTRICTION OF  LIQUID METALS "               IN THE NAME OF :    AGENCE NATIONALE DE VALORISATION DE LA RECHERCHE               (ANVAR) ABSTRACT     The invention relates to the constriction of liquid metals at the outlet of an orifice. The jet 6 of liquid metal leaves an orifice 1 forming a nozzle of diameter D and it is constricted into a jet 9 of diameter d due to a winding 2 traversed by an alternating current and a conductive screen 3 penetrating into the interior of the winding 2. Application to the flow of steel for forming billets or wires and to passage past joints ; application to the flow of aluminum, copper and their alloys for forming wires or billets of small diameter.
Patent CA-1065930-A (CA)
Inventor: CAMERON FRANK L
IPC: H01H85/00
Filed: 1976-07-15
Granted: 1979-11-06
Abstract: CURRENT LIMITING FUSE DEVICE  FOR RELATIVELY HIGH CURRENT                     ABSTRACT OF THE DISCLOSURE         A current limiting fuse and an expulsion fuse are disposed in side by side relationship on a common supporting structure.  One terminal of each fuse is interconnected electrically.  The other terminals of each fuse are spaced by a predetermined insulating gap.  An external circuit which includes a voltage source and a load to be protected is connected in series circuit relationship with the terminals of the expulsion fuse.  The current limiting fuse is only disposed in circuit relationship with the external circuit for current limiting purposes when the expulsion fuse blows because of a relatively high value of fault current.  This causes gaseous products to be directed from an internal portion of the expulsion fuse to a region between the uncon-nected terminals of both fuses.  This gas conducts electrical current, thus in effect connecting the current limiting fuse in parallel circuit relationship with the expulsion fuse to commutate the fault current from the expulsion fuse to the current limiting fuse to provide a fault current limiting operation.
Patent CA-1081133-A (CA)
Inventor: WRIGHT DAVID A
IPC: B01D17/032
Filed: 1976-08-23
Granted: 1980-07-08
Abstract: ABSTRACT OF THE DISCLOSURE:     An improved gravitational separator for mixtures of immiscible liquids of different densities, particularly oil and water, includes a floatation force responsive member in the form of a dome or diaphragm immersed in more dense liquid to be separated and which floats upwardly in the more dense liquid under the influence of liquid of less density accumulated beneath the dome or diaphragm, and a precise, passive balance means for the force responsive member used to sense the accumu-lation of a predetermined volume of less dense liquid in the separator.  The balance means is a system of weight masses contained entirely in the separator that are raised by the upward movement of the force responsive member under the influence of accumulated less dense fluid, in combination with remote sensing means outside the separator for sensing the respective balance conditions and signalling appropriate system controls to cause suspension of the influx of mixture into the separator and discharge therefrom of accumulated lighter liquid.          A coalescer screen filter system is provided in the water out-let path in the separator, the coalescer screens being con-tained in a chamber provided with automatically operating check valves to ensure proper flow of water in a forward and backflush sense through the chamber.  The force responsive member may be provided with flexible seal means extending vertically in the separator for preventing the accumulation of lighter liquid above the reaction member, while not interfering with the operation of the balancing system of the force responsive member.
Patent CA-1088889-A (CA)
Inventor: WICKBOLD REINHOLD
IPC: C07C21/04
Filed: 1976-09-09
Granted: 1980-11-04
Abstract: ABSTRACT OF THE DISCLOSURE       Liquid chlorohydrocarbon residues which may contain solids and which form a viscous to solid deposit when low-boiling constituents are separated off, are worked up by concentration under gentle conditions fol-lowed by decomposition at a temperature o from 200 to400°C..
Patent CA-1079391-A (CA)
Inventor: DONELAN A MARK
IPC: G01P5/24
Filed: 1976-09-23
Granted: 1980-06-10
Abstract: T I T L E           AN ACOUSTIC OSCILLATOR FLUID VELOCITY MEASURING               DEVICE     INVENTORS                   A. MARK DONELAN Bryan F. White ABSTRACT OF DISCLOSURE                   A fluid velocity measuring device for the accurate fast measurement of the velocity of a fluid whether liquid or gas using the time of passage of acoustic energy through the fluid as the frequency determining element in a continuous wave oscillator.  The frequencies or periods of oscillations of two anti-parallel acoustic paths are used to compute fluid velocity between the electro-acoustic transducers at the ends of the acoustic paths.  The device in accordance with this inventon may utilize a single reversing acoustic path or two anti-parallel acoustic paths.  The velocity resolution can be selected by the operator in accordance with a stated uncertainty principle limiting the ratio of frequency response to velocity  resolution.  Mode ambiguities due to fluid phase velocity variations are avoided by varying the path lengths.  The frequency range of the oscillator is limited by a phase locked loop.